Toronto is known as "Hogtown" but have no idea why. Linda
may know the origin of that nickname.

Our city, Chatham, is known as the "Maple City" because of a
preponderance of maple trees - Windsor, our neighbour 50
miles up the 401 Highway is called the "Rose City", although
years ago it was referred to as the "Border City" and the
newspaper was the Border City Star as Windsor is situated
directly across from Detroit, Michigan.

Pat

Mod's note from Linda: I didn't know but now I do! Here's
what I found: "Though it's recognized today as Canada's
largest and most cosmopolitan city, Toronto has long been
known as Hogtown because it held eastern Canada's largest
concentration of stockyards. Immigrants in search of work
could count on the fact that the slaughterhouses were always
hiring."